Bringing together an unprecedented bank of features and the connectivity to play with your other electronic gear, the Boss DB-90 Dr. Beat Metronome is a grand shogun of a staple drum accessory. Packing four different types of click with an additional human voice count for a more organic experience, the DB-90 also hooks up to any PCM-based drum machines for practicing along to actual beats. For those after even more, access the onboard Rhythm Coach to get a taskmaster during practice to make sure you're on every beat on stage.